<div>For more discussion about those two metrics, see my <a href="https://arxiv.org/abs/1708.08227" target="_blank">previous paper</a>.</div><div></div><h2 data-label="392148" class="ltx_title_subsection">Variance vs.&nbsp;entropy&nbsp;</h2><div>This internal diversity formula is essentially a <b>variance</b> (without the square). However, variance can be a poor measure of diversity, when data is clustered in few distant regions.</div>